Acrogonia barbara , Silva, Roberta Dos Santos Da, Cavichioli, Rodney R., Takiya, Daniela M. & Mejdalani, Gabriel, 2017

Silva, Roberta Dos Santos Da, Cavichioli, Rodney R., Takiya, Daniela M. & Mejdalani, Gabriel, 2017, Descriptions of eight new Acrogonia species from the Amazon region, including peculiar features of the female genitalia (Hemiptera: Cicadellidae: Cicadellinae: Proconiini), Zootaxa 4244 (4), pp. 515-534: 519-522

publication ID

https://doi.org/10.11646/zootaxa.4244.4.4

publication LSID

lsid:zoobank.org:pub:D3D6480B-9EC4-4BA2-804B-735E1ED163D5

persistent identifier

http://treatment.plazi.org/id/3B0787E4-CD30-FFB4-B0CD-EEAC8433182E

treatment provided by

Plazi

scientific name

Acrogonia barbara
status

sp. nov.

Acrogonia barbara  sp. nov.

( Figs. 18–36View FIGURES 18 – 24View FIGURES 25 – 36)

Total length. Male holotype 10.0 mm; male paratypes 9.0–10.0 mm (n = 5); female paratypes 10.2–11.0 mm (n = 4).

Holotype description. Head and thorax. Structural features of head and thorax ( Figs. 18–19View FIGURES 18 – 24) much as described above for A. amazonensis  sp. nov., except for median length of crown approximately equal to interocular width and 6/10 transocular width.

Color. Crown ( Fig. 18View FIGURES 18 – 24) mostly brown with irregular yellow and dark brown to black marks; frontogenal and temporal sutures covered by dark brown to black marks delimiting yellow area between ocelli and anterior portion of eyes. Pronotum ( Fig. 18View FIGURES 18 – 24) brown with yellow irregular areas on margins of disc. Mesonotum ( Fig. 18View FIGURES 18 – 24) brown with two small dark brown marks on anterior margin; anteapical portion yellow and apex pale yellow. Forewings ( Figs. 18–19View FIGURES 18 – 24) reddish-brown, except for membranous portions. Face, lateral and ventral portions of thorax, and legs ( Fig. 19View FIGURES 18 – 24) mostly yellow; superior portion of face and of lateral lobe of pronotum narrowly dark brown, latter also with brownish-green macula.

Male genitalia. Pygofer ( Fig. 20View FIGURES 18 – 24), in lateral view, strongly produced posteriorly; ventral margin forming lobe; setae distributed mostly on median and distal third of disc. Subgenital plates ( Figs. 20–21View FIGURES 18 – 24), in ventral view, subtriangular, basal third expanded laterally and then tapering to middle portion; apical portion slender, appearing articulated with basal portion; in lateral view, plates short, not extending posteriorly beyond basal half of pygofer ( Fig. 20View FIGURES 18 – 24); plate surface with scattered setae. Connective ( Fig. 22View FIGURES 18 – 24), in dorsal view, T-shaped; arms broad; stalk with median keel ( Fig. 23View FIGURES 18 – 24), apex distinctly expanded. Style ( Fig. 22View FIGURES 18 – 24), in dorsal view, extending posteriorly distinctly beyond apex of connective; preapical lobe slight, bearing few setae; apical portion directed outward; apex acute. Aedeagus ( Fig. 24View FIGURES 18 – 24) symmetrical; shaft strongly angled, apical portion directed dorsally; base with pair of slender elongate processes that extend posteriorly slightly beyond shaft apex; latter with small process directed basally. Anal tube ( Fig. 20View FIGURES 18 – 24) with pair of elongate basiventral processes, their apices acute and directed anteriorly.

Female. Genitalia. Sternite VII ( Figs. 25–26View FIGURES 25 – 36) bilobed; posterior margin with deep median emargination. “Internal” sternite VIII ( Fig. 27View FIGURES 25 – 36), in dorsal view, fused laterally to first valvifers. Pygofer, in lateral view, moderately produced posteriorly; apex obtuse; setae distributed mostly on posterior portion. First valvifers ( Fig. 28View FIGURES 25 – 36), in lateral view, with posteroventral lobe. First valvulae ( Fig. 29View FIGURES 25 – 36), in ventral view, expanded basally; in lateral view ( Fig. 30View FIGURES 25 – 36), with apex acute, dentiform; ventral interlocking device located on basal half of blade; dorsal sculptured area ( Fig. 31View FIGURES 25 – 36) extending from basal portion of blade to apex, formed mostly by scale-like processes arranged in oblique lines; ventral sculptured area ( Fig. 32View FIGURES 25 – 36) restricted to apical portion of blade, formed mostly by scale-like processes. Second valvulae ( Fig. 33View FIGURES 25 – 36), in lateral view, with dorsal margin convex; ventral margin approximately straight; preapical prominence strong; apex obtuse; about 20 teeth ( Figs. 33–35View FIGURES 25 – 36) distributed on dorsal expanded portion of blade; most teeth ( Fig. 34View FIGURES 25 – 36) triangular, armed with denticles, with ascending portion (= anterior edge) short, descending portion (= posterior edge) elongate; basalmost two or three teeth small and inconspicuous; blade with ducts ( Figs. 34–35View FIGURES 25 – 36) extending to apical portion and to teeth or terminating below latter; few basal teeth without ducts. Gonoplacs ( Fig. 36View FIGURES 25 – 36), in lateral view, with basal half narrow and apical half distinctly expanded; apex obtuse.

Intraspecific variation. The color of crown varies from brown to dark yellow and that of pronotum varies from brown with the anterior margin yellow to entirely yellow. Some variation may be due to fading of coloration in preserved specimens.

Etymology. The new species is described in honor of dipterist Barbara  Proença (Departamento de Entomologia, Museu Nacional, UFRJAbout UFRJ) for her friendship and help in collecting leafhoppers. The species epithet is a noun in apposition.

Type material. Holotype: male, “SINOP-M. [Mato] Grosso\ Brasil-X/1975\ M. [Moacir] Alvarenga” (DZUP). Paratypes: three males and one female, “Sinop—MT [state of Mato Grosso]\ X.1976 \ M. Alvarenga col” ( DZUPAbout DZUP, DZRJ)  ; two females, “SINOP-M. Grosso \ Brasil X/1975 \ M. Alvarenga ” ( MNRJAbout MNRJ)  ; one male, “ SINOP MATO GROSSO \ Brasil X-1975 \ M. Alvarenga Leg ” ( MNRJAbout MNRJ)  ; one female, “SINOP—MATO GROSSO\ BR X/ 1975 \ M. Alvarenga leg” (DZUP).

UFRJ

Universidade Federal Rural do Rio de Janeiro

DZUP

Universidade Federal do Parana, Colecao de Entomologia Pe. Jesus Santiago Moure

MNRJ

Museu Nacional/Universidade Federal de Rio de Janeiro